Internal-combustion engine



March 5, 1929. o. E. JORGENSEN INTERNAL COMBUSTION ENGINE 1 Filed April2, 1926 I flaw 4E. Jorrazlvsav.

anven'toc Patented Mar. 5, 1929.

OFFICE.

OLAV ESKIL J ORG-ENSEN OE FOREST HILLS, NEW YORK, ASSIGNOB 'lOWORTHINGTON PUMP AND MACHINERY CORPORATION, OF NEW YORK, N. Y., ACORPORATION OF VIRGINIA.

INTERNAL-COMBUSTION ENGINE Application filed April 2, 1926. Serial No.99,235.

This invention relates to internal combustion engines and moreparticularly to a double-acting two-cycle engine of the Diesel oroil-burning type.

provide a double-acting two-cycle engine of relatively great horse-powerin which lightness of weight and cost of manufacture per horse-power arematerially reduced over similar approved types of engines of thischaracter. v

Relatively great weight and mass of metal have been heretofore requiredin the construction of double-acting two-cycle oil engines to compensatefor the stress and strain of operation of the engine and topermit-distribution of such stress so as to obtain the maximum longevityof the engine, rendering high horsepower engines of this typeimpractical for portable use except in marine work.

It is the'cbject of the present, invention to construct the engineframe, cylinder and passage or port block in such manner as todistribute the stresses of operation of the engine from the cylinder-tothe engine frame and further to locate 'the passage or portblockintermediate the ends of the cylinder and integral therewith, witha single scavenging port and a single exhaust port for the doubleactingengine, all of which combine to reduce the weight of the enginestructure without weakening it. i

lVith these ob'ects in View, the invention consists in various featuresof construction and combination of parts, which will be first describedin connection with the accompanying drawing, showing a double-actinginternal combustion engine of the preferred form embodying-theinvention, and the features forming the invention will be specificallypointed out in the claims.

In the drawing-4 Figure 1 is the vertical section through the enginestructure. v

Figure 2 is a cross section through the engine taken on the line 22 ofFigure 1.

Referring to the drawing, the engine frame 1 has a relatively thickannular flange2 on its upper end which is reinforced by suitable webs 3.a

The lower cylinder section 4 fits within the frame 1 and has the passageblock 5 formed integrall therewith at the upper end of the lowercylinder section. The lower cylinder section 4 has an extension 4 formedthereon The object of the present invention is towhich co-operates withthe frame 1 in form- 7 tend upwardly through suitable bosses 12 in thepassage block 6, and through the clamping collar 9. Clamping nuts 13 arethreaded upon the upper ends of the bolts 11 and engage against theclamping collar 9 for connecting the upper cylinder section 8, the lowercylinder section 4 and frame 1, through the flange 2, thereby providinga substantial unitary structure arranged so that the stresses on theupper cylinder section 8, during the The passage operatiomof the engine,will be delivered through the bolts 11 to the frame 1 while stress onthe lower section 4 of the cylinder, during the operation of the enginewill also be delivered through the flange 7, clamping collar 9 and bolts11 to the frame 1.

The weight of the engine is also decreased over approved structures nowin use by providing the single passage block, formed integral with andspaced between the upper and lower ends of the cylinder structure andprovided .at one side of its transverse center with the plurality ofports 14 opening out into the chamber 15 from the interior of thecylinder. The chamber 15 opens out into the exhaust manifold 16. Thepassage block 5 is also provided with a plurality of ports 17 which havecommunication with the scavenging manifold 18. The piston 19 isconstructed in such manner as to permit proper opening of the ports 14:and 16 during the operation of the engine, such as, for instance, thecutting away of the lower portion of the piston as shown at 20 to tivelyshort concave sur aces 21 and 22 on the upper and lower ends of thepiston respectively to permit proper opening of, the ports 14., The uper surface of the piston 19 inclines from t e upper limit of the concavecutaway portion 22 across the piston top to-perv mit opening of theports 16.

Fuel is supplied to the cylinder through the fuel spray valves 24; and25 positioned,

101i permit opening of the ort 16 and the relarespectively-at the upperand lower ends of the cylinder. The spray valves 24 and 25 may be of anyapproved construction.

While in the foregoing specification the invention has been moreparticularly shown and described as embodied in a vertical single*cglinder engine, it is to be understood that e invention is applicableto multiple cylinder engines, either horizontal, vertical or inclinedengines, and the terms upper and lower referring to the cylindersections are to be understood as including cylinder sections which arenot above and below each other but farthest from and nearest to thecrankshaft.

It will be understood that the invention is not to be limited to thespecific construction or arrangement of parts shown but that these 7 theframe.

2. In a double-acting internal combustion engine, a frame, a cylindercomprising upper and lower sections, a passage block formed upon theupper end of the lower cylinder section and provided with scavenging andex-.

haust ports, a clamping collar engaging said upper'c linder section andbolts extending through said clamping collar and passage block andconnected to said frame.

3. In an internal combustion engine, a frame, having a flange thereon, acylinder,

a passage block formed on said cylinder and provided with scavenging andexhaust ports,

- a clamping collar engaging said cylinder, and

bolts extending throu h the clamping collar and threaded into saidflange for connecting the cylinder to the frame to distribute operatingstrains to the frame.

4. In an internal combustion engine, a frame, a flange thereon, acylinder comprising upper and lower sections, a clamping collar engagingsaid upper section, and bolts extending through said clamping collar andinto said flange for connecting the cylinder sections to each other andto said frame.

5. In an internal combustion engine, a cylinder comprising upper andlower sections, a passage block formed upon said lower section, a flangeupon the lower end of said upper section, and resting upon said passageblock aclamping collar engaging said flange, a frame, and boltsextending through the said clamping collar and passage block andconnected to said frame for connecting the upper and lower cylindersections to the frame.

6. In an internal combustion engine, a cylinder comprising upper andlower sections, a passage block formed'on said lower section, a flangeon said upper section and resting upon said passage block, a clampingcollar engagingsaid flange, a frame, and bolts extending through saidclamping collar and passage block and connected to said frame for Iconnecting the upper and lower cylinder sections to each other and tothe frame, and an extension formed on said lower cylinder section andco-ope'rating with saidframe to provide a cooling chamber. I

In testimony whereof I aflix my signature.

"OLAV J ORGENSEN.

